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DEBT (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Sep. 30, 2019
DEBT ARRANGEMENTS    
Long-term Debt $ 20,259 $ 15,087
Less: Current portion (1,153) (1,109)
Less: Debt issue costs not amortized (302) (207)
Total Long-term debt 18,804 13,771
Construction and Equipment loans [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 5,484 4,301
Term Loan [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 13,165 9,662
Initial Term Loan [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 3,930 3,990
Subsequent Term Loan [Member]    
DEBT ARRANGEMENTS    
Long-term Debt 4,541 4,715
Third Term Loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,255 1,271
Fourth Term Loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,500 0
Fifth Term loan    
DEBT ARRANGEMENTS    
Long-term Debt 1,939 0
Smithers Avanza Toxicology Services LLC acquisition | Unsecured promissory note    
DEBT ARRANGEMENTS    
Long-term Debt 810 810
PCRS acquisition | Unsecured promissory note    
DEBT ARRANGEMENTS    
Long-term Debt $ 800 $ 0